Date: February 2, 1990
Location: Hamburg, Germany

A soundless flying triangle was observed near Hamburg, by the amateur astronomer Gutschke when he looked at the sky to observe the stars. The 70-meters-long triangle was surrounded by a luminous dust. In the three corners, there were pinkish luminous rings. The altitude was approximately 300 meters. In about 8 seconds the triangle moved from the zenith to the horizon, in the direction of the city of Hamburg, where it vanished in the dust.

Artwork depicting the triangle UFO. (credit: von Ludwiger/MUFON-CES)

Source: Illobrand von Ludwiger/MUFON-CES (1998)

On February 2, 1990 a soundless flying triangle was observed near Hamburg, by the amateur astronomer Gutschke when he looked at the sky to observe the stars at 1:15 a.m. The 70-meters-long triangle was surrounded by a luminous dust. In the three corners, there were pinkish luminous rings. The altitude was approximately 300 meters. In about 8 seconds, the triangle moved from the zenith to the horizon, in the direction of the city of Hamburg, where it vanished in the dust.

 

Source: http://www.ufoevidence.org/cases/case655.htm